Question

Show transcribed image textFor time t < 0, switch 1 (SW1) is open and switch 2 (SW2) is closed. The initial voltage on the capacitor (for time t 0) is 12V. At time t = 0, SW1 closes. 3 milliseconds later, at time t = 3ms, SW2 opens. What is the time constant of this circuit in milliseconds? Find the capacitor voltage as a function of time, vc(t), for t 0. What is the energy stored in the capacitor before t = 0? What is the energy trapped in the capacitor after SW2 opens?